One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(9,10)(11,14)(12,15)(13,16)(17,18)(19,22)(20,25)(21,26)(23,27)(24,29)(28,30)(31,32)(33,34,37,40)(35,41,43,38)(36,39,44,46)(42,47,48,45)(9,10,13,16)(11,12,15,14)(18,19)(20,27)(21,29)(30,31)(36,44)(39,46)(42,48)(45,47)(11,15)(12,14)(17,19,22,18)(20,25,27,23)(21,24,29,26)(28,30,32,31)(33,35,37,43)(34,38,40,41)(36,42,44,48)(39,45,46,47)(1,2)(3,6)(4,5)(7,8)(9,11,13,15)(10,14,16,12)(17,20)(18,23)(19,25)(21,28)(22,27)(24,30)(26,31)(29,32)(33,34)(35,41)(36,39)(37,40)(38,43)(42,47)(44,46)(45,48)(1,3,4,7)(2,6,5,8)(9,12,13,14)(10,15,16,11)(17,21)(18,24)(19,26)(20,28)(22,29)(23,30)(25,31)(27,32)(33,36,37,44)(34,39,40,46)(35,42,43,48)(38,45,41,47)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.